Civil Engineering - Online Test
Q1. The point within the cross sectional plane of a beam through which the resultant
of the external loading on the beam has to pass through to ensure pure bending
without twisting of the cross-section of the beam is called
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. The eigen values of a skew-symmetric matrix are
Answer : Option C
Explaination / Solution:
Eigen value of a Skew-symmetric matrix are either zero or pure imaginary in conjugate pairs.
Q3. Consider the following statements :
1. On a principal plane, only normal stress acts.
2. On a principal plane, both normal and shear stresses act.
3. On a principal plane, only shear stress acts
4. Isothermal state of stress is independent of frame of reference.
Which of the above statements is/are correct ?
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. The trigonometric Fourier series for the waveform f (t) shown below contains
Answer : Option C
Explaination / Solution:
For a function x(t) trigonometric fourier series is
For an even function x(t),Bn = 0
Since given function is even function so coefficient Bn = 0, only cosine and constant
terms are present in its fourier series representation.
Constant term :
Constant term is negative.
Q5. A hollow circular shaft has an outer diameter of 100 mm and a wall thickness of
25 mm. The allowable shear stress in the shaft is 125 MPa. The maximum torque
the shaft can transmit is
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. A function n(x) satisfied the differential equation 
where L is a constant. The boundary conditions are :n(0) = K and n(∞) = 0. The solution to this equation is
where L is a constant. The boundary conditions are :n(0) = K and n(∞) = 0. The solution to this equation is
Answer : Option D
Explaination / Solution:
Given differential equation
Q7. Match List-I (Shear Force Diagrams) beams with List-II (Diagram of beams with
supports and loading) and select the correct answer by using the codes given
below the lists :
List-I
Codes:
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Consider the z -transform 
The inverse z -transform x[n] is
The inverse z -transform x[n] is
Answer : Option A
Explaination / Solution:
Q9. In the cantilever beam PQR shown in figure below, the segment PQ has flexural
rigidity EI and the segment QR has infinite flexural rigidity
The deflection and slope of the beam at Q are respectively
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. If ey = x1/x , then y has a
Answer : Option A
Explaination / Solution:
